The course of human history is determined, not by what happens in the skies, but what takes place in our hearts.
Evolution is unproved and unprovable. We believe it only because the only alternative is special creation, and that is unthinkable.
My personal conviction is that science is concerned wholly with truth, not with ethics.
The discovery of agriculture was the first big step toward a civilized life.
Civilization never stands still; if in one country it is falling back, in another it is changing, evolving, becoming more complicated, bringing fresh experience to body and mind, breeding new desires, and exploiting Nature's cupboard for their satisfaction.
Tribal life comes automatically to an end when a primitive people begins to live in a town or a city, for sooner or later a tribal organization is found to be incompatible with life in a city.
As long as man remains an inquiring animal, there can never be a complete unanimity in our fundamental beliefs. The more diverse our paths, the greater is likely to be the divergence of beliefs.
I am a rank individualist.
I prize the conditions under which I have lived because they have permitted me to choose my opportunities, to inquire into such matters as interested me, and to publish what I believed to be true, uncontrolled by any central authority.
Civilization, we shall find, like Universalism and Christianity, is anti evolutionary in its effects; it works against the laws and conditions which regulated the earlier stages of man's ascent.
In a tribal organization, even in time of peace, service to tribe or state predominates over all self seeking; in war, service for the tribe or state becomes supreme, and personal liberty is suspended.
Man is by nature competitive, combative, ambitious, jealous, envious, and vengeful.
In every man there is an instinctive and passionate reaction if his person or liberty is attacked.
It is just because civilization is ever evolving, changing, and becoming more complicated, that experts find it so difficult to define it in explicit terms.
Nowhere is Universalism welcomed and encouraged by a people; everywhere governments have forced and are forcing Universalism upon unwilling and resistant subjects.
Christianity has not conquered nationalism; the opposite has been the case nationalism has made Christianity its footstool.
A drunkard is one thing, and a temperate man is quite another.
Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.
Human nature, as manifested in tribalism and nationalism, provides the momentum of the machinery of human evolution.
Religious leaders and men of science have the same ideals; they want to understand and explain the universe of which they are part; they both earnestly desire to solve, if a solution be ever possible, that great riddle: Why are we here?
No tribe unites with another of its own free will.
The German Fuhrer, as I have consistently maintained, is an evolutionist; he has consistently sought to make the practices of Germany conform to the theory of evolution.
The proper balance between individual liberty and central authority is a very ancient problem.
We shall never understand the ethical system taught by Jesus unless we realize that he was a Jew, not only by birth, but that he lived and taught as a Jew; the Sermon on the Mount was addressed to his distracted fellow nationals.
The main force used in the evolving world of humanity has hitherto been applied in the form of war.
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